Furnace.



Patented Oct. 2, I900.

J. S. L. RO'DRICK.

FU BNAGE.

(Application filed June 1, 1900.)

2 Shoots-Sheet I.

-'(No Model.)

INVENTOI? W/TNES A 7TORNEYS Patented Oct. 2, I900.

J. S. L. BODRIC'K.

F10 R NAB E (Application filed June 1, 1900.)

2 Shoots-Sheet 2 (No Model.)

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FFICE.

PATENT JOHN S. L. RODRIOK, OF WASHINGTON, DISTRICT OF COLUMBIA.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 659,104, dated October 2, 1900.

Application filed June 1, 1900.

To ctZZ whom it may concern:

Be it known that I, JOHN S. L. RoDRIcK, residing at Washington, in the District of Columbia, have invented a new and useful Improvement in Furnaces, of which the following is a specification.

My invention is an improvement in furnaces having for an object to so construct the of. Fig. 3 is a cross-section on about line 3 3 of Fig. 2. Fig. 4 is a detail perspective view of the cap-plate. Fig. 5 is a detail perspective view of the combustiomchamber. Fig. 6 is a cross-sectional view on about line 6 b of Fig. 2, and Fig. 7 is a detail perspective View of the check or smoke-deflector.

An important feature of my invention is the provision of 'a series of upright superheating-chambers encircling the fire-pot and combustion-chamber and discharging at their upper ends into pipes or supplemental fiues which may lead into the main heating-fines, the purpose being to provide a large number of superheating chambers, the heat from which may be directed into any desired one of the main heating-fines to increase the heat supplied to said main flue and also to induce the circulation of the heat up through such In the construction shown the fire-pot A, with its grate B and the combustion-chamber C, may in general respects be of the ordinary or other desired construction. Upon the outer side of the fire-pot A, I provide at desired intervals a number of upright flanges or plates A, extending to the upper end of the fire-pot. At such end the fire-pot is joined by the lower end of the combustionchamber 0, and this combustion-chamber is provided on its outer side with the series of upright plates or flanges O, which meet at their lower ends the upper ends of the plates A of the fire-pot and coincide with and form extensions of the said plates A, as will be understood from the drawings. Upon the Serial No. 18.715. (No model.)

E is also provided with openings and upwardly-projecting nipples E, with which the supplemental fines H or I connect. The nipples E communicate with the super-heatingchambers formed between the flanges or plates A, O, and D, before described, and these chambers are inclosed by the jacket J, which encircles the firepot, combustionchamber, and smoke-drum and is engaged atits upper end by the depending flange It on the cap-plate E. The casing K, with its top K, fits over the several parts and has connected with it the main heating -flues L, which may lead from the sides or top of the casing, as may be desired,and receive the supplemental heating-fines H wherever necessity requires, it being well understood that in most houses heated by furnaces some flues naturally receive a large proportion of the heat, while others receive practically none. By the use of the described construction the flue which receives but little heat may be supplied with a supplemental flue H, so the latter will aid the flue in which'it is directed both directly by the heat it conducts and indirectly by the added oirculation which it induces in the said flue. Where a flue extends practically horizontal for some distance from the furnace, it may be desirable to extend the supplemental flue to or nearly to the upward bend in the said heating-flue, as shown at the right in Fig. 2. It may also be desirable in some instances to conduct the heat from two or more of the superheating-chambers into one of the main fines, and this may be accomplished by the construction of the supplemental flue shown at I in Fig. land in which the flue is branched to connect with a plurality of the nipples E.

The smoke-drum aids in the heating by extending the superheating-chambers and also by preventing the smoke from passing off too rapidly, to which end the drum has an inletpipe at M in its bottom, which extends toward the rearof the combustion-chamber and is arranged to open into the smoke-drum at a point diametrically opposite the offtake G. Between the inlet and outlet I provide a check or deflector N, which may preferably consist, as shown, of a curved plate having upon its concave side a bail N, which may serve as a handle in adjusting the deflector and in the use of the same as a scraper in clearing the bottom of the smoke-drum and may also serve as a support for the deflector when the same is applied for use, as shown in Fig. 2.

In the operation of myfurnace,in addition to the heat ascending in the usual way to the top, there to be drawn into the main flues as the caprices of the draft may direct, I secure astrong volume of heat ascending through separate superheating-chambers directly into each desired one of the main heating'flues and concentrate all the heat at the top of the furnace, so it can be properly supplied to the main heating-fines, as occasion may require.

My furnace can be readily cleaned of all soot and dust, is simple in construction, and can be' made at a small cost.

By securing a proper distribution of the heat and providing means by which to direct the heat to any desired point the use of the furnace will result in a large saving of fuel.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. Animproved furnace comprising the firepot, the combustion-chamber, upright plates on the outer sides of same forming a series of longitudinal superheating-chambers,a smokedrum upon the combustion-chamber and having on its outer side upright plates coinciding with those on said combustion-chamber and forming continuations thereof, a cap on said smoke-drum and provided with nipples communicating with the superheating-chambers, the jacket around said fire-pot, combustionchamber and smoke-drum, the casing, the heating-flues,;md the superheating-fiues communicating with the upper ends of the superheating-chambers and leading into the main heating-flues, substantially as set forth.

2. A furnace substantially as described comprising the fire-pot and combustion-chamher, a series of upright, superheating-chambers extending around said fire-pot and combustion-chamber, a cap-plate at the upper end of said superheating-chambers and provided with openings communicating with said chambers, the casing and main heating-fines leading therefrom,and the superheating-flues communicating with the superheating-chamhers and discharging into the main heatingflues, substantially as set forth.

3. The combination in a furnace with the firepot,combustioncl1amber and means forminga series of upright superheating-chambers around said parts, of the casing and main heating-flues, and a cap-plate provided with openings communicating with the superheating-chambers,and the superheating-fi ues leading from said cap-plate to discharge into the main heating-flues, substantially as set forth.

4. In a furnace the combination of the combustion-chamber the smoke-chamber above the same and the inlet-pipe leading from the smoke-chamber into the combustion-chamber and deflected rearwardly within the latter, substantially as set forth.

5. In a furnace substantially as described, the combination of the combustion-chamber, the smoke-chamber and the combined scraper and deflector in the latter, said deflector being adjustable within the smoke'chamber and consisting of a plate and a ball or handle, substantially as set forth.

JOHN S. L. RODRICK.

Witnesses:

SoLoN C. KEMON, PERRY B. TURPIN. 

